Joseph, MI, USA), ash by heating a sample in a muffle furnace at 550oC for 6h (Galyean, 2010, AFIA, 2014), DMD and
DOMD by the pepsin cellulase digestibility assay (AFIA, 2014) and ME calculated as DMOD x 0.203 - 3.001 (AFIA, 2014).
Perhaps most helpfully, they provide a section of acknowledgments, consisting largely of links (complete with copyright dates and authors) to other online sources that supplement DOMD's coverage.
The definitions in DOMD vary quite a bit in terms of length and depth, and because of the derivative nature of many of them, they lack the consistency of approach one might find in a dictionary assembled from whole-cloth.